Milling machine vise



NOV. 26, 1940. F, KQCH 2,223,323

MILLING MACHINE vIsE Filed oct. 2s, 195s ,52 sheets-sheet 1 INV-ENTORmfofk/ck koch' Nov. 26` 1940. F KOCH 2,223,323

MILLING MACHINE vIsE Filed 0613.28, 1939 2 Sheets-Sheet 2 l I W lNvENToR'FEEDER/CK KOCH BY M2M ATT RNYv itz Patented Nov. 26, 1940 PATENT OFFICEVISE Frederick Koch, Sparta, N. J., assigner to Associated Patentees,Inc., Ampere, N. J., a corpora- `tion of New Jersey Application October28, 1939, Serial No. 301,697

`9 Claims.

, The invention here disclosed relates to vises and particularly thoughnot exclusively to those `of a type suitable for holding the workinmilling r, machines.

Objects or the invention are to provide a quick acting vise, which can-be readily set for -holding work of different size, which in theholding position will have a high pressure factor, which will beautomatically stopped to lock in the high pressure holding position,which will automaticallyhold in the adjusted position all the morefirmly with increase of pressure on the stud which holds the vise set,vfor dierent sizes of, work and which with these and various otherdesirable attributes lwill be of relatively simple, substantialconstruction and consisting of but few parts.

The foregoing and other objects are attained by certain novel featuresof construction, combinations and relations of parts hereinafterdescribed and broadly claimed.

, The drawings accompanying and 4forming part of the followingspeciiication illustrate one of the present practical commercialembodimentsof the invention. The structure however may be modied andchanged as regards this disclosure all within the true intent of theinvention, as will` be apparent from the scope of the claims.

Figs. l and 2 are top plan .views illustrating the invention embodied inthe form of a milling machine vise and showing it in open and closed orsubstantially closed positions.

Fig. 3 is a longitudinal sectional view ason substantially `the plane ofline 3--3 of Fig. 1.

Fig. 4 is a cross-sectional view on substantially the plane of linevIl---i of Fig. 3.

Fig. 5 is a broken and part sectional detail illustrating the eccentricjaw closing mechanism.

In the embodiment illustrated, the basel, of the vise is designed formounting on a milling machine table and for that purpose is shown as ofrelatively'flat elongated design, carrying a iixed jaw 8, at one end andrecessed at 9, to take the bolts for fastening it down on the millingmachine.

'Ihe movable jaw is shown at ID, slidable to- 'ward and away from thefixed jaw over the flat trackway I I, guided thereon by dependentflanges I2, reaching down over the side edges ofthe track as in Fig. 4and confined in such relation by retainers I3, bolted to suchdependentflanges and extending inwardly beneath conning shoulders I4, ofthe base. f

`Quick opening and closing jaw movements are effected in theillustration by means of a hand (Cl. s-60) f lever I5, pivoted on abushingor spacer sleeve I6, Fig. 3 and having an eccentric portion I1,Fig. 5, encircled by one end of a push link I8, which has its oppositeend pivotally engaged with a pin I9, set in the movable jaw. Thiseccentric link is shown as supported on a shouldered portion 20, on thelever at the base of the eccentric and as loosely confined in thisrelation by a washer 2l, resting on tcp of the sleeve I6, Figs. 3 and 4.Ar the opposite end, the link 10 enters through a recess 22, in the endof the movable jaw. The pivot pin I9, is shown in Fig. 3, as `extendingacross the cavity 22, in the end of the jaw and as having a head 23, atthe lower end of the same seating in a corresponding 5' opening in thelower face of the jaw, such head. sliding over the surface of the trackIl, which latter thereby prevents escape of the pivot pin.

The eccentric jaw operating means disclosed provides a positive highpressure closing of the jaw and the hand lever enables quick easyoperation of such means for either jaw closing or opening movements.

A shoulder 24, on the hand lever by engagement with the rear face of themovable jaw at 25, 25 Fig. 5, limits the jaw closing movement of thislever and these cooperating parts are preferably so arranged as toengage just before the eccentric reaches the extreme limit of travel.This prevents the high point of the eccentric from passing the deadcenter position, thus to stop the parts in a locked relation justbeforereaching the extreme limit of travel, where pressure ispractically at that maximum which is possible at the eXtreme end ofeccentric travel. 5

For adjustment of the vise to different size pieces, the eccentric pivotis made adjustable, inv the illustration by providing a bolt 26,carrying the pivot bushing I6. This bolt is shown as having arectangular head portion 21, slidably o and non-rotatably held in anintermediate slot 28, in the guide II, and below that a widened orlaterally extended head 29, engaged in the wid.- ened undercut groove30. A nut 3|, on the upper g1 screw-threaded end of the bolton thewasher 2l, to force the pivot bushing I l,A down on the track II., andto draw the head 29, on the lower end of the bolt firmly up against theroof 32, of thev l undercut slot 30. By loosening nut 3|, the whole 50movable jaw assembly can be quickly shifted one way or the other to suitthe size of piece to be held and by simply tightening this nut, theparts can be secured in position where the handle can he `usedtappe-mandclose `the movable jaw tol 55 release or to secure work of thatparticular size. To lock the pivot stud in the position to which it isset, the undercut slot or at least the upper shoulders 32, of the sameare inclined downwardly away from the vise jaws on a slope such asrepresented by the line 33, Fig. 3 and the coacting upper face of theabutment head 29, is similarly inclined, thus to cooperate with awedging eiect upon application of jaw closing pressure. Stateddifferently, the thrust of the jaw closing operation tending to shiftthe pivot stud away from the xed jaw serves to bind the coacting wedgefaces of the bolt head and undercut groove all the more iirmly together.The reaction is a force enough to withstand any such action. Anytendency to slip will be. immediately stopped by a wedgingself-tightening cooperation of the parts.

The parts are proportioned so that the bushing will act as a spacingsleeve seating rmly down on top of the track II, while leaving the leverfree vto oscillate thereon between said track at the bottom and thewasher 2l, at the top.

Similarly, the link I8 is left free on the leccentric I'Lbetween theshoulder 20, on the hub of the lever and said conning washer 2|.

Upon sufliciently loosening a nut 3 l the handle assembly with theattachedvmovable jaw can be entirely withdrawn from the track portion ofthe base and whenrso removed, the pin I9, can be dropped or knocked outto release the movable jaw, thus to enable the ready substitution of a45 on, the movable jaw is utilized to effect a morel secure holding ofthe vise in the adjusted position to vwhich it has been set andanytendency to slip is made effective to automatically secure these partsthe more rmly. 50 i What is claimed is: I

1. In a vise of the character disclosed, cooperating relatively movablejaws, an eccentric for applying ijaw closing pressure and an vad'-justable mounting for said eccentric including a .55 support having aface inclined at a` slightangle in respect to the j'aw movement and amounting stud for said eccentric having an abutment head in clampingengagement'with said face` and the inclination of said face beingdivergent in respect 60 to' the jaw movement in the jaw opening direc.

tion,'wh ereby to create the effect of a weldging engagement between theabutment head of said stud and said inclined face from reaction of thejaw closing pressure. 65 2. In a viseof the character "disclosed, .abase, xed and movable jaws on said base, said movable jaw having astraightline movement on said base,a jaw closing lever connected tooperate said movable jaw, a pivot mounting for said lever and adjustablesecuring means for said `pivot mounting, including .a channel for saidmounting in said base and inclined ata slightly divergent angleinrespect to the jaw movement inthe opening direction to eifectwedginginterlocking 75 engagement 'of said pivot 4mounting 'onthe base tendingto elongate the bolt, which is made heavy as a result of thereaction ofthe movable jaw.

3. In a vise, a base having a track with an intermediate slot and awidened undercut groove below said slot, the roof of said undercutgroove being inclined in respect to the face of said track,

a movable jaw slidingly confined to said track, a

stud having a head slidingly and non-rotatably conned in said slot andan extended head portion received lin said groove and engaged with theinclined roof of the same and means mounted on said stud for operatingsaid movable jaw.

4. In a vise, a base having a track with an intermediate slot and awidened undercutA groove below said slot, the roof of said undercutgroove Abeing inclined inl respect to the face of said track,

a movable jaw slidingly conned to said track, a stud having a headslidingly and non-rotatably conned in said slot and an extended headportion received in said groove and engaged with the inclined roof ofthe same, means mounted on said stud for operating said movable jaw,said means including 4an eccentric pivotally supported on said stud anda link connection between said eccentric and said movable jaw.

.5. In a vise, a base having a track with an intermediate slot ,and awidened undercut groove below said slot, the roof of said undercutgroove being inclined in respect to the face of said track, a movablejaw slidingly confined to said track, a stud Yhaving a head slidinglyand non-rotatably coniined in said slot and an extended head portionreceived in saidgroove an engaged with the inclined roof of the same,means mounted on said stud for operating said movable jaw, said meansincluding an eccentric pivotally supported on said stud, a linkrconnection between said eccentric Iand said movable jaw and cooperatingstops connected with said eccentric and movable jaw for limitingrotation of said eccentric to a point approximating the maximum throw ofthe eccentric.

6. In a vise,abase having a track with an intermediate 'slot andv awidened undercut groove belowsaid slot, the roof of said undercut groovebeing inclined in respect to the face of said track, a movable jawslidingly confined to said track, a stud havinga head slidingly andnon-rotatably confined in said slot and an extended head portionreceived in said groove and engaged with the inclined roof of the same,means mounted on said stud for operating said movable jaw, said meansincluding a spacer sleeve on said stud, a hand leverf having aneccentricv hub pivoted on said sleeve,- a link engaged onsaid eccentricand connected with said movable jaw, a nut on said stud and a washersecured by said nut in rigid engagement with saidspacerl sleeve and infree conning relation to said eccentric hub and the link engagedthereon.

' 7". In avise, 'a'base having a track'with an intermediate slot andawidened, undercut groove belowsaid slot, the roof of said undercutgroove being inclined in respect tothe face ofsaid track, a movable jawslidingly conned to said track, a stud disposed in said slot and havingan extended head portion received in said groove and engaged with `theinclined roof oi the same and means mounted on said stud for operatingsaid movablejaw.`

. 8.1 In avise, alibasehaving a track with an intermediate slot and'y aYwidened undercut groove below said slot, the roof 'of said undercutgroove being inclined in respect to the face of lsaid track, a movablejaw slidingly confined to said track, a studrdisposedinlsaid slot 'andhaving an extended head portion received in said groove and engaged withthe inclined roof of the same and means mounted on said stud foroperating said movable jaw, said means including a spacer sleeve on saidstud and engaged with said track, a hand lever pivoted on said sleeveand having an eccentric portion, a link engaged on said eccentricportion and connected With said movable jaw, a nut on said stud and awasher secured by said nut in' rigid engagement with said spacer sleeveand in free confining relation to said lever and to the link engagedthereon.

9. In a vise, a `base having a track With an intermediate slot and awidened undercut groove below said slot, a movable jaw slidingly connedto said track, a stud disposed in said slot and having an extended headportion received in said groove and means mounted `on said stud foroperating said movablev jaw, said means including a spacer sleeve onsaid stud and engaged with said track, a hand lever pivoted on saidsleeve and having an eccentric portion, .a link engaged on saideccentric portion and connected with said movable jaw, a nut on saidstud and a Washer secured by said nut in rigid engagement with saidspacer sleeve and in free conning relation to said lever and to the linkengaged thereon.

FREDERICK KOCH.

